OLYMPIA, Wash. (AP) — Health officials say that the number of hospitalized COVID-19 patients in is doubling every 18 to 19 days in the state. The the state has documented 5,879 possible vaccine breakthrough cases of COVID-19 in Washington state, but the vast majority of cases involve unvaccinated patients. More than 94% of COVID-19 patients hospitalized between Feb. 1 and Aug. 3 were not fully vaccinated. Chief Science Officer Scott Lindquist said a young person died of COVID-19 at a Seattle-area hospital on Tuesday. As of Monday, 72.4% of people age 12 and older have initiated vaccination and more than 63% are fully vaccinated.